Sticky Leaves on Schefflera and Fig Bonsai: Scale Insects

Bonsai enthusiast sees sticky substance on fig bonsai after losing a schefflera to same issue. No visible insects found.

Diagnosis: Scale (Invisible)

Sticky "honeydew" is excreted by scale/aphids. Even if unseen, treat as scale. Schefflera and figs also have natural sticky sap from cuts.

Spray entire plant with horticultural/biorganic oil (top/bottom leaves, trunk).
Place in bright light (not direct sun) to dry honeydew.
Repeat weekly for 2–3 weeks.

Oil smothers scale. If sap from cuts, oil helps it flake off.

Plant Diseases: Robellini Palm Frost Damage and Scale Management in Florida; Sticky Leaves on Zebra Plant? It's Honeydew from Sap-Sucking Insects; Fig Rust in Key West: Humidity-Driven, Tolerate It; Philodendron Yellowing at Base: Adjustment or Overwatering?; Fig Tree Leaf Yellowing and Drop: Rust Disease in Humid Conditions; Sticky Sap on Ficus? Check for Scale Insects; Schefflera Dropping Leaves? Check Watering and Root Health; Money Tree (Pachira) Scale Insects: Identification and Treatment; Sticky Anthurium Leaves? It's Scale Insects—Here's How to Treat It; Peace Lily Sticky Leaves = Scale Insects: Complete Treatment Guide

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